All over the world, Auschwitz has become a symbol of terror, genocide, and the Holocaust. It was established by Germans in 1940, in the suburbs of Oswiecim, a Polish city that was annexed to the Third Reich by the Nazis. Its name was changed to Auschwitz, which also became the name of Konzentrationslager Auschwitz. Auschwitz I. The first and oldest was the so-called "main camp," later also known as "Auschwitz I" (the number of prisoners fluctuated around 15,000, sometimes rising above 20,000), which was established on the grounds and in the buildings of prewar Polish barracks.

Auschwitz II. The second part was the Birkenau camp (which held over 90,000 prisoners in 1944), also known as "Auschwitz II" This was the largest part of the Auschwitz complex. The Nazis began building it in 1941 on the site of the village of Brzezinka, three kilometers from Oswiecim. The Polish civilian population was evicted and their houses confiscated and demolished. The greater part of the apparatus of mass extermination was built in Birkenau and the majority of the victims were murdered here.